Headphone



1.1 is a front view of a headphone showing my new design;

1.2 is a left perspective view thereof;

1.3 is an enlarged right perspective view thereof;

1.4 is a right perspective view thereof;

1.5 is a right perspective view thereof showing the headphone in analternate position of use;

1.6 is an enlarged left perspective view thereof; and

1.7 is a right side view thereof;

CLAIM The ornamental design for a headphone, as shown and described.